You make good points and you've obviously thought this out. On '09's I understand the right-leg heat is much reduced from earlier models, however.

I like the breather design of the SE on my '07, which is different from the '09. The FM AC is basically an SE with a cleanable (K&N-like) element, and I can't say which is preferable--but Jamie at Fuel Moto once told me there is little or no performance difference between the various AC's on the market. I would buy whichever is cheaper, and I believe FM sells all of them, including Ness and K&N. I would quiz Jamie or Keith about this, as neither will BS you.

Another big consideration is how the AC channels the breather output into the cavity. On my SE it channels the oil into the velocity stack, which keeps it out of the filter element and won't drip or barf like K&N's do. I think Ness AC's use a similar design as K&N, and for me that would be a big factor in my decision. Since the '09 SE is different from my '07 I would ask about this before buying. Here's a photo with arrows pointing to the plastic nozzles. I don't know if the '09's work like this or not, but you get the idea.



First, the Rev-Extend function of the PCV is an on or off proposition, and isn't something that can be switched between maps. The switching aspect is a map-only function, and other features and options that are available in the PC software are not affected. You should also be aware that your tach will stop at 5100 rpm when Rev-Extend is activated ('08 and '09 only) even though RPM's will continue up to 6200.

The basic PCV can switch between two base maps like you describe, and even the old PCIII was capable of this if you bought the Multifunction Hub ($150). You no longer need the Hub with the PCV and only need to connect a simple on-off switch. I bought a second ACC switch for my fairing insert cap (see photo, second switch from left) and am using it for the PCV, but any on-off switch will work.



With AT installed, up (as shown in the pic) is the base map (open-loop, no AT) and down is AT (closed-loop). If you plan on doing any future mods (cams, head work, CR increases, etc.) I would just go ahead and buy the AT kit from the outset. Or, if you're an incorrigible tweaker like me you might need it to keep your psyche tamed.

I have never heard of anyone asking for two maps to be loaded in a PCV before shipment but that would be a reasonable request, IMO. You could ask him to give you a second map that provides a 14.6 (or whatever) AFR in the cruise range for mileage, but I don't know if he's developed one that goes far enough for meaningful mileage savings. He does have a "mileage map," but it only provides 13.8:1 AFR in the cruise range, which for my taste doesn't go far enough. If something more radical isn't available I would ask them for their normal base map for the richer alternative and then tweak the cruise range on the second map yourself for better mileage. I can help you with that.

How far you go with leaning depends on you and your bike. I had my stock setup running well at 14.7:1 in the cruise range with no ill effects, and oil temperature as well as radiated engine heat remained very moderate even in summer, but I have a cooler installed which helps greatly in this regard. When I had the PCIII and basic PCV (no AT) I had my base-map values set mostly to "0" in the cruise range, and mileage was very good without any surging (when hot), detonation, abnormal heat, or other adverse side-effects.

If I were in your position I would quiz FM about the possibility of loading two maps, with the stipulation that one be near-stock in leanness for mileage, and the other their regular (rich) base map set up for cooling and throttle response. For anyone opting for only one map I would ask for the "mileage map," which IMO is rich enough to provide a meaningful cooling effect. BTW, setting it up lean in the cruise range will not hamper WOT acceleration or any TP above 20% at all since those areas of the map will not be altered.

 

Thanks again.